2results about How to "Improve linear range" patented technology

The present application belongs to the technical field of solid phase extraction, and particularly relates to a solid phase extraction membrane based on a defective MOF as well as a preparation method and application thereof. The solid phase extraction membrane based on the defective MOF comprises a carrier and a coating layer loaded on the surface of the carrier; the composition of the coating layer comprises a defective amino MOF material; the defective amino MOF material is prepared by taking a metal as a center, taking 3,5-dibromo-4-hydroxybenzaldehyde as a template molecule, and reacting with an amino organic ligand. By adopting a specific template molecule, the defective MOF structure has pores that are matched with the shape and size of the template molecule, has strong adsorption capacity for structural analogues of the template molecule, has strong selectivity for target analytes, can highly selectively enrich chlorophenol, and makes the solid phase extraction membrane have excellent adsorption effect on chlorophenol, high enrichment multiple and good reproducibility.

The application provides a method for improving the linear range of a latex-enhanced turbidimetry kit and the latex-enhanced turbidimetry kit, and relates to the technical field of analysis and detection. The application finds that sodium deoxycholate is added to reagent 1 of the existing latex-enhanced turbidimetry kit. Experimental verification shows that the correlation coefficient of the existing latex-enhanced turbidimetry kit can be effectively improved, and the upper limit of the detection linearity of the latex-enhanced turbidimetry kit is improved to 500 mg / L, thereby effectively alleviating the problem that the linear range of the reagent of the existing latex-enhanced turbidimetry kit is narrow, and 90% of the sample amount in the clinic cannot be covered, so as to affect the accuracy of the clinical detection result.